为什么用sth sell well?我知道是主动表被动，但是然后怎么解释？

为什么用sth sell well?我知道是主动表被动，但是然后怎么解释？ sell是不是系动词,为什么有时候会说sth.sell good而有时候又说sth.sell well sth be sold out,sth sell well sell 用法sell 有时用主动有时用被动..为什么?The book sells well.是怎么回事？ thses apples taste good and sell well 为什么第一个用good ,第二个用well sell sth to(for) sb可以用括号里的吗?为什么 sell wellthe cars sell well the cars are sold well 哪个对?为什么? sell sth.out 还是 sell out sth. this kind of books sells well and are sold out in the bookshop这句话中第一个sell为什么用主动sells.第二个sell为什么用被动are sold还有,我记得 this kind of+名词复数,谓语动词用单数的,为什么第二个sell要用are taste后加well还是nice?sell呢?为什么? sell sth.________a good price 用with 还是for? sth well sell well和sell out的用法The kind of shoes sell well.The kind of shoes are sold out.为什么一句用主动,一句用被动语态? This kind of shoes __________ (sell) well.用sell还是sells? sell well和sell good 的区别 是sell good 还是sell well What about the pants?---They___.A.sell well B.are sold well应选哪个,为什么 This necklace looks nice and sells well麻烦问一下,为什么look nice和sell well